Some time ago I used know someone who knew someone who worked in a bank. For some reason we were chatting one evening and the conversation got around to "What would you do if someone came in and said 'I've got a gun, give me all your money'?"

Apparently the bank had a special code phrase which was to be used in this situation. The drill was to ask the cashier at the next position "What time is Andy's party?". Apparently the appropriate action involving silent alarms, marked notes and giant falling cages (or whatever) could then be taken.

This has bugged me for years. Viewed from the perspective of the robber this would be highly confusing. I'm presenting the person in front of me with the business end of a firearm, demanding money with menaces and the first thing they do is sort out a few social engagements before getting on with doling out the cash. At very least this would make me inclined to increase their motivation a bit, perhaps by shooting up the place. Bonkers.

I've since figured out that the code phrase has now been changed slightly. Now, they way that they signal miscreants is by not offering them life insurance, a new mortgage or a car loan as they hand the money over....

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Rob Miles is technology author and educator who spent many years as a lecturer in Computer Science at the University of Hull. He is also a Microsoft Developer Technologies MVP. He is into technology, teaching and photography. He is the author of the World Famous C# Yellow Book and almost as handsome as he thinks he is.